2565162625 has 8 divisors (see below), whose sum is σ = 3201323112. Its totient is φ = 2052130000.

The previous prime is 2565162619. The next prime is 2565162631. The reversal of 2565162625 is 5262615652.

It is an interprime number because it is at equal distance from previous prime (2565162619) and next prime (2565162631).

It can be written as a sum of positive squares in 4 ways, for example, as 5612161 + 2559550464 = 2369^2 + 50592^2 .

It is not a de Polignac number, because 2565162625 - 2²⁷ = 2430944897 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10260526 + ... + 10260775.

It is an arithmetic number, because the mean of its divisors is an integer number (400165389).

Almost surely, 2^2565162625 is an apocalyptic number.

2565162625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2565162625 is a deficient number, since it is larger than the sum of its proper divisors (636160487).

2565162625 is an equidigital number, since it uses as much as digits as its factorization.

2565162625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20521316 (or 20521306 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The square root of 2565162625 is about 50647.4345352260. The cubic root of 2565162625 is about 1368.8997195190.

The spelling of 2565162625 in words is "two billion, five hundred sixty-five million, one hundred sixty-two thousand, six hundred twenty-five".